Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 23 for “"Gxe"”.
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Adaptability of Soybeans to Late-Planted Environments (Isolines, Gxe, Double Cropping)
Soybeans {Glycine max (L.) Merr.} are grown in the Midwest primarily as a full-season crop and only to a limited extent as a double crop. Development of cultivars specifically adapted to double cropping has been suggested as a means to expand double-crop acreage in this area. Before initiating a …
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Genetic and environmental influences on impulsivity and coping motives for alcohol across emerging and young adulthood
… (i.e., a gene-environment interaction, GXE) on personality traits and motives associated with alcohol use disorders. This project examines whether variation in DRD4 moderates the environmental influence of childhood adversity on personality (including replication attempts of reported …
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Systems Analysis of Plant Responses to Drought
… complex genotype-by-environment interactions (GxE). This dissertation investigates these themes, aiming to advance our understanding of the mechanisms driving plant responses to environmental stress and providing insights for improving agricultural resilience and sustainability, as well as …
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Index selection in terminal sire sheep: implications for genetic improvement in a crossbreeding system
… and genetics by environment interactions (GxE) on genetic evaluation. The most widely used breeds of terminal sires in the UK are Charollais, Suffolk, and Texel. These breeds participated in sire referencing schemes from the early 1990s by sharing rams selected on the lean growth index. …
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Microglial dysfunction as an early susceptibility to Alzheimer's disease: the exacerbating role of developmental toxicity
… In the present thesis, gene and environment (GxE) interactions were evaluated in the propagation of microglial dysfunction within the context of AD. We hypothesized that postnatal toxicant exposure in a mouse model of AD (Tg) would disrupt neuroimmune development preferentially in females, in …
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Are maternal symptoms of depression/PTSD and Child Genetic risk scores for depression/PTSD associated with childhood subcortical brain volumes?
… symptoms of depression and PTSD (G+E or GxE), on child subcortical brain volumes at two years of age; and 2) the genetic architecture of these brain volumes. Using PRS-CSx, PRSs were derived from Psychiatric Genomics Consortium summary statistics, with the Drakenstein Child Health Study …
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Quantitative trait loci mapping for grain yield and other traits of agronomic importance in maize
… with genotype by environment interactions (GXE) for grain yield among individual environments each year, the associations detected for combined environments within a year were stable between 1991 and 1992.
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The Social Environment, Genetics, and Obesity: Evaluation of Diathesis-Stress and Differential Susceptibility Frameworks
… frameworks in the area of gene-by-environment (GxE) interaction: diathesis-stress and differential susceptibility. The diathesis-stress model has informed nearly all behavioral gene-by-environment studies and is the prevailing theoretical orientation among GxE scholars. Within the last decade, …
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The role of genomic selection and advanced statistical modeling in domesticating perennial sorghum
… can accounting for Genotype × Environment (GxE) interactions, including the use of environmental covariates (ECs), improve predictive ability? We found that partitioning single nucleotide polymorphisms (SNPs) based on a priori genetic features did not consistently boost predictive ability …
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Contextualized pathways towards women's use of violence: A mixed-methods investigation
… trauma and substance use intervening between GxE effects and violence. Female-specificity was largely supported by qualitative interviews with a subset of 20 women. Qualitative interviews also extend quantitative findings by informing the sequence of risky experiences in women’s lives and …
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Investigating the Capacity of Generative AI to Learn Genotype-by-Environment Interactions in Brachypodium distachyon
… one way that genotype-by-environment (GxE) interactions manifest at the molecular level. While transcriptomic data offers a unique and powerful view into these responses, traditional modeling approaches often rely on linear assumptions, limiting their ability to detect complex, …
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Phytochemical mediated resistance in sweetpotato to sweetpotato weevils
… population. The genotype by environment (GxE) interaction effect was also significant on the sweetpotato weevil damage on the stem portion of the sweetpotato vine indicating that weevil stem damage is dependent on the season. The mean number of sweetpotato weevil feeding holes differed …
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Adolescent inattention/overactivity/impulsivity as an outcome of early institutional deprivation: the role of genetic factors
… in the final discussion chapter. When the GxE interaction findings are integrated with the observation of persistence of IOI impairment and the commonalities in phenotypic presentation with nondeprivation-related ADHD, the results provide support for the hypothesised gene-environment …
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A genetic analysis of molecular traits in skeletal muscle
… of participants to map genotype by environment (GxE) effects on gene expression—eQTLs that exhibit effects specific to an environmental context. Altogether, these analyses form a thorough survey of the genetic regulators of skeletal muscle expression and DNA methylation, and provide an important …
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Physiological responses of common bean(Phaseolus vulgaris L.)genotypes to water stress
… There was significant genotype by environment (GXE) interactions. These interactions were observed in relative injury percentage, chlorophyll a, chlorophyll b, total chlorophyll, relative water content, grain yield, number of pods per plant, hundred seed weight, number of seeds per pod and days …
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Physiological responses of common bean(Phaseolus vulgaris L.)genotypes to water stress
… There was significant genotype by environment (GXE) interactions. These interactions were observed in relative injury percentage, chlorophyll a, chlorophyll b, total chlorophyll, relative water content, grain yield, number of pods per plant, hundred seed weight, number of seeds per pod and days …
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Perfomance and Ability of Mutation Derived Lines of Common Beans(Phaseolus vulgaris l)
… (p≤ 0.01). It revealed the existence of GxE interaction. Pair wise comparison using least significant difference showed that none of the mutant lines had higher yields than their respective parents. However, the Francis and Kannenberg genotype grouping technique revealed that these lines …
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Perfomance and Ability of Mutation Derived Lines of Common Beans(Phaseolus vulgaris l)
… (p≤ 0.01). It revealed the existence of GxE interaction. Pair wise comparison using least significant difference showed that none of the mutant lines had higher yields than their respective parents. However, the Francis and Kannenberg genotype grouping technique revealed that these lines …
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The Natural and Orthogonal Interaction (Noia) Models For Quantitative Traits (Qts) and Complex Diseases
… that allows for modeling gene-environment (GxE) interactions influencing disease risk, and (3) developing a statistical approach for modeling genetic variants displaying parent-of-origin effects (POEs), such as imprinting.</p> <p>In the past decade, genetic researchers have identified a …
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Repurposing variance genome-wide association studies (vGWAS) for identifying gene-by-environment interactions
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-12-04 without embargo terms
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